CN112054595B - Intelligent hard pressing plate remote control device - Google Patents
Intelligent hard pressing plate remote control device Download PDFInfo
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- CN112054595B CN112054595B CN202010883946.2A CN202010883946A CN112054595B CN 112054595 B CN112054595 B CN 112054595B CN 202010883946 A CN202010883946 A CN 202010883946A CN 112054595 B CN112054595 B CN 112054595B
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- 238000003825 pressing Methods 0.000 title claims abstract description 80
- 230000007246 mechanism Effects 0.000 claims description 48
- 230000009471 action Effects 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000012790 confirmation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
- H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses an intelligent hard pressing plate remote control device which comprises a box body, a control unit and a plurality of execution plug-ins, wherein the execution plug-ins are arranged on the box body; the control unit is fixed in the box body, and a plurality of execution plug-ins are inserted into the box body; the execution plug-in units are matched with the arrangement of the inner plates in the screen cabinet of the existing engineering application, and each execution plug-in unit is mutually independent and has no mechanical or electrical interference; the execution plug-in is electrically connected with the control unit, and the control unit is used for controlling the execution plug-in to complete automatic switching. The advantages are that: the invention utilizes the control unit to complete the position changing and state acquisition of the pressing plate of the execution plug-in unit; the space in the screen cabinet is saved, the number of engineering wiring is reduced, and the engineering wiring difficulty is greatly reduced; the invention has simple structure, low manufacturing and maintenance cost, convenient operation and strong stability, effectively reduces the operation risk of operation and maintenance personnel, improves the working efficiency and reduces the labor cost; the safety of the system is effectively improved, and the system has strong practicability and wide applicability.
Description
Technical Field
The invention relates to a remote control device for a hard pressing plate of secondary equipment, in particular to an intelligent remote control device for the hard pressing plate, which can realize remote switching and real-time state monitoring of the pressing plate, and belongs to the technical field of transformer substations.
Background
The relay protection system is an indispensable important component in the power system, and the reliable and stable relay protection system is directly related to the safe operation of the power system. The power pressing plate is a bridge and a tie of the relay protection device connected with external wiring, is also a means of man-machine interaction, can realize partial functions of the protection device through the operation of throwing and retreating the pressing plate, and can also determine the result of the protection action. Meanwhile, the pressing plate is an obvious disconnection point in the protection system, and an operation and maintenance person can intuitively observe whether a tripping circuit of the relay protection device is communicated with a tripping coil of the circuit breaker, so that great convenience is provided for maintenance and operation.
Operation and maintenance of the pressing plate of the existing relay protection device are manually performed by a worker: when the pressing plate is operated, a cabinet door of the relay protection cabinet needs to be opened, and then the pressing plate is operated; when detecting the state of the pressing plate, the pressing plate needs to be compared one by one.
Whether the pressure plate is operated or the pressure plate state is detected, operation and maintenance personnel need to arrive at the site first, however, the environment where the relay protection device is located has a great threat to the personal safety of the operation and maintenance personnel: on one hand, the secondary equipment is usually arranged beside the primary equipment, and the environment of the secondary equipment is at risk; on the other hand, the cabinet is electrified in the operation process, and the possibility of danger of operators is increased by opening the cabinet door to operate the pressing plate. Meanwhile, the hard pressing plates are numerous in number and identical in shape, and accidents such as misthrowing, missed throwing, misleakage detection and the like are easy to occur in the manual operation and maintenance process, so that a large potential safety hazard is caused.
At present, researchers realize real-time state monitoring of the electric hard pressing plate by adopting a non-contact sensing technology and an image recognition technology, but the technology only can monitor the state of the pressing plate, can not automatically operate the pressing plate and can not respond to the faults of the pressing plate in real time; some researchers design electric pressing plates capable of realizing automatic switching, but the structure of the electric pressing plates is relatively complex, motor driving is adopted, and additional motor controllers and encoders are required to be configured, so that the complexity of the electric pressing plate control system is greatly increased, the cost is high, the stability is poor, meanwhile, the electric pressing plates are designed aiming at single pressing plates, and in practical engineering application, the electric pressing plates have the problems of difficult arrangement and maintenance and the like, and in addition, the electric pressing plates have certain pressing plate state detection capability, but are in single state confirmation or indirectly reflect the state of the pressing plates through the motion state of a detection actuating mechanism, so that the reliability is poor.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an intelligent hard pressing plate remote control device.
In order to solve the technical problems, the invention provides an intelligent hard pressing plate remote control device which comprises a box body, a control unit and a plurality of execution plug-ins;
the control unit is fixed in the box body, and a plurality of execution plug-ins are inserted into the box body;
The execution plug-in units are matched with the arrangement of the inner plates in the screen cabinet of the existing engineering application, and each execution plug-in unit is mutually independent and has no mechanical or electrical interference;
the execution plug-in is electrically connected with the control unit, and the control unit is used for controlling the execution plug-in to complete automatic switching.
Further, the height of the box body is 2U, and the size and the position of the front panel of the box body are completely the same as those of the sealing plate of the existing rack type screen cabinet 2U, so that the box body can be directly installed in the existing screen cabinet.
Further, the box body comprises a box body shell and a guide rail, wherein the guide rail is arranged in the box body shell and used for limiting the execution plug-in unit, an upper connecting terminal outlet and a lower connecting terminal outlet are reserved at the rear end of the box body shell, and a cushion column is arranged at the bottom of the rear end of the box body shell;
The control unit is fixedly connected in the box body through the cushion column and is used for uploading device operation information and receiving processing control signals.
Further, the electric connector also comprises a wiring terminal socket I and a wiring terminal socket II;
the connecting terminal sockets I are welded and fixed at the front end of the control unit, are the same as the execution plug-ins in number and are used for electrically connecting the control unit and the execution plug-ins;
The wiring terminal socket II is welded and fixed at the rear end of the control unit, protrudes out of the lower outlet of the wiring terminal and is used for communication and electrifying between the device and the outside.
Further, the execution plug-in comprises a pressing plate automatic switching mechanism, a switching state sensing module plug-in panel, a plug-in board, an action mechanism fixing plate, a plug-in board mounting block, a wiring terminal plug, a wiring terminal socket III, a tag frame and a spring screw;
The automatic pressing plate switching mechanism comprises a plug-in pressing plate, an action mechanism and a power mechanism, wherein the plug-in pressing plate, the action mechanism and the power mechanism are sequentially connected from front to back;
The front end of the plug-in type pressing plate is fixed with a Z-shaped cover plate;
The plug-in panel is fixedly connected with the plug-in board through the plug-in board mounting block, the plug-in type pressing plate, the throwing state sensing module, the retreating state sensing module and the label frame are fixedly connected with the plug-in panel, the actuating mechanism and the power mechanism are fixedly connected to the plug-in board through the actuating mechanism fixing plate, and the spring screw is in press riveting connection with the plug-in panel;
When the pluggable pressing plate is in a throwing state, the throwing state sensing module is triggered to be conducted under the action of the Z-shaped cover plate;
When the plug-in type pressing plate is in a retreating state, the retreating state sensing module and an electrode plug of the plug-in type pressing plate form a conducting loop;
The lower side of the rear end of the plug-in board is provided with the wiring terminal plug, wires of the power mechanism, the state-throwing sensing module and the state-retreating sensing module are connected into the wiring terminal plug, and the wiring terminal plug is connected with the wiring terminal socket I in an inserting mode;
A wiring terminal socket III is fixed on the upper side of the rear end of the plug-in plugboard, a main loop wire of the plug-in pressing plate is connected into the wiring terminal socket III and led out through an upper outlet of the wiring terminal, and the wiring terminal socket is connected with secondary equipment through an electric wiring in a screen cabinet;
the execution insert is fixed with the box body through the spring screw.
Furthermore, the action mechanism adopts an alternating self-locking flat-rotating coupling mechanism and is used for converting single-degree-of-freedom translational input into double-degree-of-freedom translational and rotating coupled motion output so as to complete the operation of throwing and retreating the pressing plate.
Furthermore, the power mechanism adopts a translation power source which is electrified and reset when the power is lost.
Furthermore, the state sensing module adopts a contact type or non-contact type sensor.
Further, the state-withdrawing sensing module comprises a pair of electrode sockets arranged at the state-withdrawing positions of the plug-in pressing plate, and the electrode sockets are matched with the electrode plugs of the plug-in pressing plate.
The invention has the beneficial effects that:
The invention utilizes the opening and closing functions and the remote signaling remote control functions of the control unit to complete the position changing and state acquisition of the pressing plate of the execution plug-in unit; the modular and standardized design is adopted, and the plug-in box type structure is provided, so that the plug-in box type structure can be directly exchanged with a standard 2U sealing plate, and the rapid engineering application and the convenient operation and maintenance without shutdown of the device are realized; the integrated design of the control unit and the actuating mechanism is adopted, wiring is completed in the device by utilizing the opposite-plug type wiring terminal, the space in the screen cabinet is saved, the number of engineering wiring is reduced, and the engineering wiring difficulty is greatly reduced.
The invention has simple structure, low manufacturing and maintenance cost, convenient operation and strong stability, effectively reduces the operation risk of operation and maintenance personnel, improves the working efficiency and reduces the labor cost; the safety of the system is effectively improved, and the system has strong practicability and wide applicability.
Drawings
FIG. 1 is a schematic diagram of an intelligent hard platen remote control device of the present invention;
FIG. 2 is a schematic diagram of the control unit assembly of the present invention;
FIG. 3 is a schematic diagram of an execution plug-in structure according to the present invention;
FIG. 4 is a schematic view of the automatic pressing plate switching mechanism according to the present invention;
FIG. 5 is a schematic diagram of an execution plug-in "throw" state of the present invention;
FIG. 6 is a schematic diagram of the "retirement" state of the execution plug-in of the present invention.
The meaning of the symbols in the drawings is as follows:
fig. 1: 1. the box body, 2, carry out the plug-in components;
Fig. 2: 3. the control unit 11, the box body shell 12, the guide rail 13, the pad column 31, the wiring terminal sockets I and 32 and the wiring terminal socket II;
Fig. 3: 21. the automatic pressing plate switching mechanism comprises a pressing plate switching mechanism 22, a switching state sensing module 23, a switching state sensing module 24, a plug-in panel 25, a plug-in board 26, an action mechanism fixing plate 27, a plug-in board mounting block 28, a wiring terminal plug 29, a wiring terminal socket III, 210, a tag frame 211 and a spring screw;
Fig. 4: 2101. plug-in pressing plate 2102, action mechanism 2103, power mechanism 2104 and Z-shaped cover plate.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, the technical solutions in the embodiments of the present invention are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
An intelligent hard pressing plate remote control device is shown in fig. 1 and 2, and consists of a box body 1, an execution plug-in 2 and a control unit 3. The height of the box body 1 is 2U, and the size of the front panel and the position of the fixing hole are completely the same as those of the pressing plate sealing plate of the existing rack type screen cabinet. The 9 groups of execution plug-ins 2 are inserted into the box body 1, are matched with the arrangement of the press plates in the screen cabinet of the existing engineering application, and the execution plug-ins 2 are fixed with the box body 1 through the spring bolts 211 and mutually independent, have no mechanical or electrical interference and can be independently installed and maintained.
The box 1 comprises a box shell 11 and a guide rail 12, wherein the guide rail 12 is arranged in the box shell 11 and used for limiting the plug-in unit 2, and the back of the box shell 11 is reserved with an upper outlet of the connecting terminal and a lower outlet of the connecting terminal. The bottom of the rear end of the box body shell is provided with a cushion column 13, and the control unit 3 is fixedly connected in the box body 1 through the cushion column 13.
The control unit 3 comprises a CPU, a communication module, an opening and closing module, a power module, a PCB board, a wiring terminal socket I31 and a wiring terminal socket II 32, and is used for uploading device operation information and receiving processing control instructions. The connecting terminal sockets I31 are welded and fixed at the front end of the control unit 3, are the same in number as the execution plug-ins 2, and are used for connecting the control unit 3 with the execution plug-ins 2. The wiring terminal socket II 32 is welded and fixed at the rear end of the control unit 3, and protrudes out of the lower outlet of the wiring terminal of the box body shell 11 for communication and power-on of the device and the outside.
As shown in fig. 3 and 4, the executive card 2 includes a platen automatic switching mechanism 21, a switching state sensing module 22, a switching state sensing module 23, a card panel 24, a card insertion board 25, an action mechanism fixing plate 26, an insertion board mounting block 27, a terminal plug 28, a terminal socket iii 29, a tag frame 210, and a spring screw 211. The plug-in panel 24 and the plug-in board 25 are fixedly connected through the plug-in board mounting block 27, the plug-in type pressing plate 2101, the throwing state sensing module 22, the retreating state sensing module 23 and the label frame 210 are fixedly connected to the plug-in panel 24, the actuating mechanism 2102 and the power mechanism 2103 are fixedly connected to the card insertion plate 25 through the actuating mechanism fixing plate 26, and the spring screws 211 are press-riveted to the card panel 24.
The automatic pressing plate switching mechanism 21 comprises a plug-in pressing plate 2101, an action mechanism 2102 and a power mechanism 2103 which are sequentially connected from front to back, and a Z-shaped cover plate 2104 is fixed at the front end of the plug-in pressing plate 2101. The actuating mechanism 2102 adopts an alternating self-locking flat-turning coupling mechanism to convert single-degree-of-freedom translational input into double-degree-of-freedom translational and turning coupling motion output so as to realize the operation of throwing and retreating the pressing plate, and the power mechanism 2103 is a translational power source for power-on motion and power-off reset, preferably a push-pull electromagnet.
The state sensing module 22 is a tact switch, and in practical application, a contact type sensor and a non-contact type sensor such as an inductive proximity switch, a photoelectric proximity switch, an optical fiber proximity switch and the like can be adopted. The withdrawal state sensing module 23 includes a pair of electrode sockets provided at the withdrawal state position of the pluggable pressing plate 2101, and the electrode sockets are matched with the electrode plugs of the pluggable pressing plate 2101.
The lower side of the rear end of the plug-in plugboard 25 is provided with a wiring terminal plug 28, and wires of the power mechanism 2103, the throwing state sensing module 22 and the retreating state sensing module 23 are connected to the wiring terminal plug 28, and the wiring terminal plug can be spliced with a wiring terminal socket I31. The upper side of the rear end of the plug-in plugboard 25 is fixed with a wiring terminal socket III 29, a main loop wire of the plug-in pressing plate 2101 is connected with the wiring terminal socket III 29 and led out through an upper outlet of a wiring terminal of the box body shell 11, and is connected with secondary equipment through an electric wiring in the screen cabinet;
As shown in fig. 5 and fig. 6, when the pluggable pressing plate 2101 is in a throwing state, the throwing state sensing module 22 is triggered to be conducted under the action of the Z-shaped cover plate 2104, the retreating state sensing module 23 is not conducted, and the control unit 3 receives an opening signal '10', namely the pressing plate is in a throwing state; when the plug-in type pressing plate 2101 is in a retreating state, the retreating state sensing module 23 and the electrode plug of the plug-in type pressing plate 2101 form a conducting loop, at the moment, the Z-shaped cover plate 2104 and the throwing state sensing module 22 lose contact, the throwing state sensing module 22 is not conducted, and the control unit 3 receives an opening signal '01', namely the pressing plate is in the retreating state; when the control unit 3 receives the on-signal '00' or '11', the system is abnormal, so that the system can realize double-source confirmation of the state of the pressing plate.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The intelligent hard pressing plate remote control device is characterized by comprising a box body (1), a control unit (3) and a plurality of execution plug-ins (2);
The control unit (3) is fixed in the box body (1), and a plurality of execution plug-ins (2) are plugged with the box body (1);
The execution plug-in units (2) are matched with the arrangement of the press plates in the screen cabinet of the existing engineering application, and each execution plug-in unit is mutually independent and has no mechanical or electrical interference;
The execution plug-in (2) is electrically connected with the control unit (3), and the control unit (3) is used for controlling the execution plug-in (2) to finish automatic switching;
The box body (1) comprises a box body shell (11) and a guide rail (12), wherein the guide rail (12) is arranged in the box body shell (11) and used for limiting the execution plug-in unit (2), an upper binding post outlet and a lower binding post outlet are reserved at the rear end of the box body shell (11), and a cushion column (13) is arranged at the bottom of the rear end of the box body shell; the control unit (3) is fixedly connected in the box body (1) through the cushion column (13) and is used for uploading device operation information and receiving a processing control signal;
The execution plug-in (2) comprises a pressing plate automatic switching mechanism (21), a switching state sensing module (22), a switching state sensing module (23), a plug-in panel (24), a plug-in board (25), an action mechanism fixing plate (26), a plug-in board mounting block (27), a wiring terminal plug (28), a wiring terminal socket III (29), a tag frame (210) and a spring screw (211);
The automatic pressing plate switching mechanism (21) comprises a plug-in pressing plate (2101), an action mechanism (2102) and a power mechanism (2103), wherein the plug-in pressing plate (2101), the action mechanism (2102) and the power mechanism (2103) are sequentially connected from front to back;
The front end of the plug-in pressing plate (2101) is fixedly provided with a Z-shaped cover plate (2104);
The plug-in panel (24) is fixedly connected with the plug-in plug board (25) through the plug board mounting block (27), the plug-in pressing plate (2101), the throwing state sensing module (22), the retreating state sensing module (23) and the tag frame (210) are fixedly connected with the plug-in panel (24), the actuating mechanism (2102) and the power mechanism (2103) are fixedly connected with the plug-in plug board (25) through the actuating mechanism fixing plate (26), and the spring screw (211) is in rivet pressing connection with the plug-in panel (24);
When the plug-in pressing plate (2101) is in a throwing state, the throwing state sensing module (22) is triggered to be conducted under the action of the Z-shaped cover plate (2104);
when the plug-in type pressing plate (2101) is in a retreating state, the retreating state sensing module (23) and an electrode plug of the plug-in type pressing plate (2101) form a conducting loop;
The lower side of the rear end of the plug-in board (25) is provided with the wiring terminal plug (28), the power mechanism (2103), the state-throwing sensing module (22) and the state-retreating sensing module (23) are connected into the wiring terminal plug (28), and the wiring terminal plug (28) is spliced with the wiring terminal socket I (31);
A wiring terminal socket III (29) is fixed on the upper side of the rear end of the plug-in plugboard (25), a main loop wire of the plug-in pressing plate (2101) is connected into the wiring terminal socket III (29) and led out through an upper outlet of the wiring terminal, and is connected with secondary equipment through an electric wiring in a screen cabinet;
The actuating insert (2) is fixed to the housing (1) by means of the spring screw (211).
2. The intelligent hard pressing plate remote control device according to claim 1, wherein the height of the box body (1) is 2U, the size and the position of the fixing holes of the front panel are identical to those of the sealing plates of the existing rack type screen cabinet 2U, and the intelligent hard pressing plate remote control device can be directly installed in the existing screen cabinet.
3. The intelligent hard platen remote control of claim 1, further comprising a terminal socket i (31) and a terminal socket ii (32);
The connecting terminal sockets I (31) are welded and fixed at the front end of the control unit (3) and are the same as the execution plug-ins (2) in number and are used for electrically connecting the control unit (3) with the execution plug-ins (2);
The wiring terminal socket II (32) is welded and fixed at the rear end of the control unit (3), protrudes out of the lower outlet of the wiring terminal and is used for communication and electrifying between the device and the outside.
4. The intelligent hard press plate remote control device according to claim 1, wherein the action mechanism (2102) adopts an alternating self-locking flat-rotating coupling mechanism, and is used for converting single-degree-of-freedom translational input into double-degree-of-freedom translational and rotational coupling motion output, so as to complete the operation of switching the press plate.
5. The intelligent hard platen remote control of claim 1 wherein the power mechanism (2103) employs a translational power source that is energized and de-energized for return.
6. The intelligent hard platen remote control of claim 1 wherein the throw-state sensing module (22) employs a contact or non-contact sensor.
7. The intelligent hard platen remote control device of claim 1, wherein the withdrawal state sensing module (23) includes a pair of electrode receptacles disposed at the withdrawal state positions of the pluggable platen (2101), the electrode receptacles being mated with electrode plugs of the pluggable platen (2101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010883946.2A CN112054595B (en) | 2020-08-28 | 2020-08-28 | Intelligent hard pressing plate remote control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010883946.2A CN112054595B (en) | 2020-08-28 | 2020-08-28 | Intelligent hard pressing plate remote control device |
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| CN112054595A CN112054595A (en) | 2020-12-08 |
| CN112054595B true CN112054595B (en) | 2024-05-31 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113346446A (en) * | 2021-06-15 | 2021-09-03 | 安徽柒海智能控制技术有限公司 | Relay protection hard pressing plate electric action mechanism and working method thereof |
| CN114928154A (en) * | 2022-05-26 | 2022-08-19 | 国网山东省电力公司平邑县供电公司 | Integrated remote switching power supply for transformer substation |
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